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* modules/audio_output/portaudio.c: portaudio (www.portaudio.com) audio output plugin by Frédéric RUGET (frederic dot ruget at free dot fr).
This commit is contained in:
Gildas Bazin
parent
81d271b990
commit
cb40249314
15
configure.ac
15
configure.ac
@ -3102,6 +3102,21 @@ AC_ARG_ENABLE(esd,
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fi
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fi])
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dnl
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dnl Portaudio module
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dnl
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AC_ARG_ENABLE(portaudio,
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[ --enable-portaudio Portaudio library support (default disabled)],
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[if test "${enable_portaudio}" = "yes"
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then
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VLC_ADD_PLUGINS([portaudio])
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if test "${SYS}" = "mingw32"; then
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VLC_ADD_LDFLAGS([portaudio],[-lportaudio -lwinmm -lole32])
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else
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VLC_ADD_LDFLAGS([portaudio],[-lportaudio])
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fi
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fi])
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dnl
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dnl aRts module
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dnl
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@ -336,6 +336,8 @@ $Id$
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* playlist: playlist import module
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* portaudio: audio output module that uses the portaudio library (www.portaudio.com)
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* postprocessing_c: Video Postprocessing module
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* postprocessing_mmx: Video Postprocessing module using MMX
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@ -8,3 +8,4 @@ SOURCES_oss = oss.c
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SOURCES_aout_sdl = sdl.c
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SOURCES_waveout = waveout.c
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SOURCES_hd1000a = hd1000a.cpp
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SOURCES_portaudio = portaudio.c
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375
modules/audio_output/portaudio.c
Normal file
375
modules/audio_output/portaudio.c
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@ -0,0 +1,375 @@
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/*****************************************************************************
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* portaudio.c : portaudio audio output plugin
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*****************************************************************************
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* Copyright (C) 2002 VideoLAN
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* $Id$
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*
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* Authors: Frederic Ruget <frederic.ruget@free.fr>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Preamble
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*****************************************************************************/
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#include <string.h>
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#include <stdlib.h>
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#include <vlc/vlc.h>
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#include <vlc/aout.h>
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#include <portaudio.h>
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#include "aout_internal.h"
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#define FRAME_SIZE 1024 /* The size is in samples, not in bytes */
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#define FRAMES_NUM 8
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/*****************************************************************************
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* aout_sys_t: portaudio audio output method descriptor
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*****************************************************************************/
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struct aout_sys_t
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{
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aout_instance_t *p_aout;
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PortAudioStream *p_stream;
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int i_numDevices;
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int i_nbChannels;
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PaSampleFormat sampleFormat;
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int i_sampleSize;
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PaDeviceID i_deviceId;
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PaDeviceInfo deviceInfo;
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};
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/*****************************************************************************
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* Local prototypes.
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*****************************************************************************/
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static int Open ( vlc_object_t * );
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static void Close ( vlc_object_t * );
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static void Play ( aout_instance_t * );
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static int i_once = 0;
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/*****************************************************************************
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* Module descriptor
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*****************************************************************************/
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#define DEVICE_TEXT N_("Output device")
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#define DEVICE_LONGTEXT N_("Portaudio identifier for the output device")
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vlc_module_begin();
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set_description( N_("PORTAUDIO audio output") );
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add_integer( "portaudio-device", 0, NULL,
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DEVICE_TEXT, DEVICE_LONGTEXT, VLC_FALSE );
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set_capability( "audio output", 40 );
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set_callbacks( Open, Close );
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vlc_module_end();
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/* This routine will be called by the PortAudio engine when audio is needed.
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** It may called at interrupt level on some machines so don't do anything
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** that could mess up the system like calling malloc() or free().
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*/
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static int paCallback( void *inputBuffer, void *outputBuffer,
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unsigned long framesPerBuffer,
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PaTimestamp outTime, void *p_cookie )
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{
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struct aout_sys_t* p_sys = (struct aout_sys_t*) p_cookie;
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aout_instance_t * p_aout = p_sys->p_aout;
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aout_buffer_t * p_buffer;
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vlc_mutex_lock( &p_aout->output_fifo_lock );
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p_buffer = aout_FifoPop( p_aout, &p_aout->output.fifo );
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vlc_mutex_unlock( &p_aout->output_fifo_lock );
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if ( p_buffer != NULL )
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{
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p_aout->p_vlc->pf_memcpy( outputBuffer, p_buffer->p_buffer,
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framesPerBuffer * p_sys->i_sampleSize );
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aout_BufferFree( p_buffer );
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}
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else
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{
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p_aout->p_vlc->pf_memset( outputBuffer, 0,
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framesPerBuffer * p_sys->i_sampleSize );
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}
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return 0;
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}
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/*****************************************************************************
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* Open: open the audio device
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*****************************************************************************/
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static int Open ( vlc_object_t * p_this )
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{
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aout_instance_t *p_aout = (aout_instance_t *)p_this;
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struct aout_sys_t * p_sys;
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PortAudioStream *p_stream;
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vlc_value_t val;
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PaError i_err;
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int i_nb_channels;
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const PaDeviceInfo *p_pdi;
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int i, j;
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msg_Dbg( p_aout, "Entering Open()");
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/* Allocate p_sys structure */
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p_sys = (struct aout_sys_t*) malloc( sizeof( aout_sys_t ) );
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if( p_sys == NULL )
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{
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msg_Err( p_aout, "out of memory" );
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return VLC_ENOMEM;
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}
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p_sys->p_aout = p_aout;
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p_aout->output.p_sys = p_sys;
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/* Output device id */
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var_Create( p_this, "portaudio-device",
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VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
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var_Get( p_this, "portaudio-device", &val );
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p_sys->i_deviceId = val.i_int;
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if (! i_once)
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{
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i_once = 1;
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i_err = Pa_Initialize();
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if ( i_err != paNoError )
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{
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msg_Err( p_aout, "Pa_Initialize returned %d : %s", i_err, Pa_GetErrorText( i_err ));
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return VLC_EGENERIC;
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}
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}
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p_sys->i_numDevices = Pa_CountDevices();
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if( p_sys->i_numDevices < 0 )
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{
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i_err = p_sys->i_numDevices;
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msg_Err( p_aout, "Pa_CountDevices returned %d : %s", i_err, Pa_GetErrorText( i_err ));
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(void) Pa_Terminate();
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return VLC_EGENERIC;
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}
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msg_Info( p_aout, "Number of devices = %d", p_sys->i_numDevices );
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if ( p_sys->i_deviceId >= p_sys->i_numDevices )
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{
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msg_Err( p_aout, "Device %d does not exist", p_sys->i_deviceId );
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(void) Pa_Terminate();
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return VLC_EGENERIC;
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}
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for( i = 0; i < p_sys->i_numDevices; i++ )
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{
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p_pdi = Pa_GetDeviceInfo( i );
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if ( i == p_sys->i_deviceId )
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{
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p_sys->deviceInfo = *p_pdi;
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}
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msg_Info( p_aout, "---------------------------------------------- #%d", i );
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msg_Info( p_aout, "Name = %s", p_pdi->name );
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msg_Info( p_aout, "Max Inputs = %d, Max Outputs = %d",
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p_pdi->maxInputChannels, p_pdi->maxOutputChannels );
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if( p_pdi->numSampleRates == -1 )
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{
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msg_Info( p_aout, "Sample Rate Range = %f to %f", p_pdi->sampleRates[0], p_pdi->sampleRates[1] );
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}
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else
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{
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msg_Info( p_aout, "Sample Rates =");
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for( j = 0; j < p_pdi->numSampleRates; j++ )
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{
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msg_Info( p_aout, " %8.2f,", p_pdi->sampleRates[j] );
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}
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}
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msg_Info( p_aout, "Native Sample Formats = ");
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if( p_pdi->nativeSampleFormats & paInt8 ) msg_Info( p_aout, "paInt8");
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if( p_pdi->nativeSampleFormats & paUInt8 ) msg_Info( p_aout, "paUInt8");
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if( p_pdi->nativeSampleFormats & paInt16 ) msg_Info( p_aout, "paInt16");
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if( p_pdi->nativeSampleFormats & paInt32 ) msg_Info( p_aout, "paInt32");
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if( p_pdi->nativeSampleFormats & paFloat32 ) msg_Info( p_aout, "paFloat32");
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if( p_pdi->nativeSampleFormats & paInt24 ) msg_Info( p_aout, "paInt24");
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if( p_pdi->nativeSampleFormats & paPackedInt24 ) msg_Info( p_aout, "paPackedInt24");
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}
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msg_Info( p_aout, "----------------------------------------------");
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/*
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portaudio warning: Number of devices = 3
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portaudio warning: ---------------------------------------------- #0 DefaultInput DefaultOutput
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portaudio warning: Name = PORTAUDIO DirectX Full Duplex Driver
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portaudio warning: Max Inputs = 2, Max Outputs = 2
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portaudio warning: Sample Rates =
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portaudio warning: 11025.00,
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portaudio warning: 22050.00,
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portaudio warning: 32000.00,
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portaudio warning: 44100.00,
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portaudio warning: 48000.00,
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portaudio warning: 88200.00,
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portaudio warning: 96000.00,
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portaudio warning: Native Sample Formats =
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portaudio warning: paInt16
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portaudio warning: ---------------------------------------------- #1
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portaudio warning: Name = PORTAUDIO Multimedia Driver
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portaudio warning: Max Inputs = 2, Max Outputs = 2
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portaudio warning: Sample Rates =
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portaudio warning: 11025.00,
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portaudio warning: 22050.00,
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portaudio warning: 32000.00,
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portaudio warning: 44100.00,
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portaudio warning: 48000.00,
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portaudio warning: 88200.00,
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portaudio warning: 96000.00,
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portaudio warning: Native Sample Formats =
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portaudio warning: paInt16
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portaudio warning: ---------------------------------------------- #2
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portaudio warning: Name = E-MU PORTAUDIO
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portaudio warning: Max Inputs = 0, Max Outputs = 4
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portaudio warning: Sample Rates =
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portaudio warning: 44100.00,
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portaudio warning: 48000.00,
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portaudio warning: 96000.00,
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portaudio warning: Native Sample Formats =
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portaudio warning: paInt16
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portaudio warning: ----------------------------------------------
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*/
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p_aout->output.pf_play = Play;
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aout_VolumeSoftInit( p_aout );
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/* select audio format */
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if( p_sys->deviceInfo.nativeSampleFormats & paFloat32 )
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{
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p_sys->sampleFormat = paFloat32;
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p_aout->output.output.i_format = VLC_FOURCC('f','l','3','2');
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p_sys->i_sampleSize = 4;
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}
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else if( p_sys->deviceInfo.nativeSampleFormats & paInt16 )
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{
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p_sys->sampleFormat = paInt16;
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p_aout->output.output.i_format = AOUT_FMT_S16_NE;
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p_sys->i_sampleSize = 2;
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}
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else
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{
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msg_Err( p_aout, "Audio format not supported" );
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(void) Pa_Terminate();
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return VLC_EGENERIC;
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}
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i_nb_channels = aout_FormatNbChannels( &p_aout->output.output );
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msg_Info( p_aout, "nb_channels = %d", i_nb_channels );
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if ( i_nb_channels > p_sys->deviceInfo.maxOutputChannels )
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{
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if ( p_sys->deviceInfo.maxOutputChannels < 1 )
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{
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msg_Err( p_aout, "No channel available" );
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(void) Pa_Terminate();
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return VLC_EGENERIC;
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}
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else if ( p_sys->deviceInfo.maxOutputChannels < 2 )
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{
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p_sys->i_nbChannels = 1;
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p_aout->output.output.i_physical_channels
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= AOUT_CHAN_CENTER;
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}
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else if ( p_sys->deviceInfo.maxOutputChannels < 4 )
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{
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p_sys->i_nbChannels = 2;
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p_aout->output.output.i_physical_channels
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= AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
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}
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else if ( p_sys->deviceInfo.maxOutputChannels < 6 )
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{
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p_sys->i_nbChannels = 4;
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p_aout->output.output.i_physical_channels
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= AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT
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| AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT;
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}
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else
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{
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p_sys->i_nbChannels = 6;
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p_aout->output.output.i_physical_channels
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= AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
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| AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT
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| AOUT_CHAN_LFE;
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}
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}
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p_sys->i_sampleSize *= p_sys->i_nbChannels;
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/* Open portaudio stream */
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p_aout->output.i_nb_samples = FRAME_SIZE;
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msg_Info( p_aout, "rate = %d", p_aout->output.output.i_rate );
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msg_Info( p_aout, "samples = %d", p_aout->output.i_nb_samples );
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i_err = Pa_OpenStream(
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&p_stream,
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paNoDevice, 0, 0, 0, /* no input device */
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p_sys->i_deviceId, /* output device */
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p_sys->i_nbChannels,
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p_sys->sampleFormat,
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NULL,
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(double) p_aout->output.output.i_rate,
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(unsigned long) p_aout->output.i_nb_samples, /* FRAMES_PER_BUFFER */
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FRAMES_NUM, /* number of buffers, if zero then use default minimum */
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paClipOff, /* we won't output out of range samples so don't bother clipping them */
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paCallback, p_sys );
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if( i_err != paNoError )
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{
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msg_Err( p_aout, "Pa_OpenStream returns %d : %s", i_err,
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Pa_GetErrorText( i_err ) );
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(void) Pa_Terminate();
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return VLC_EGENERIC;
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}
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p_sys->p_stream = p_stream;
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i_err = Pa_StartStream( p_stream );
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if( i_err != paNoError )
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{
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(void) Pa_CloseStream( p_stream);
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(void) Pa_Terminate();
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return VLC_EGENERIC;
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}
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msg_Dbg( p_aout, "Leaving Open()" );
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return VLC_SUCCESS;
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}
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/*****************************************************************************
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* Close: close the audio device
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*****************************************************************************/
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static void Close ( vlc_object_t *p_this )
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{
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aout_instance_t *p_aout = (aout_instance_t *)p_this;
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struct aout_sys_t * p_sys = p_aout->output.p_sys;
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PortAudioStream *p_stream = p_sys->p_stream;
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PaError i_err;
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msg_Dbg( p_aout, "Entering Close()");
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i_err = Pa_AbortStream( p_stream );
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if ( i_err != paNoError )
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{
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msg_Err( p_aout, "Pa_AbortStream: %d (%s)", i_err, Pa_GetErrorText( i_err ) );
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}
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i_err = Pa_CloseStream( p_stream );
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if ( i_err != paNoError )
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{
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msg_Err( p_aout, "Pa_CloseStream: %d (%s)", i_err, Pa_GetErrorText( i_err ) );
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}
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i_err = Pa_Terminate();
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if ( i_err != paNoError )
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{
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msg_Err( p_aout, "Pa_Terminate: %d (%s)", i_err, Pa_GetErrorText( i_err ) );
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}
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msg_Dbg( p_aout, "Leaving Close()");
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}
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/*****************************************************************************
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* Play: play sound
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*****************************************************************************/
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static void Play( aout_instance_t * p_aout )
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{
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}
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